Cita APA (7a ed.)

Wallerstein, I. America and the world: The Twin Towers as metaphor / Immanuel Wallerstein. Understanding September 11.(2002).

Cita Chicago Style (17a ed.)

Wallerstein, Immanuel. "America and the World: The Twin Towers as Metaphor / Immanuel Wallerstein." Understanding September 11.(2002) .

Cita MLA (8a ed.)

Wallerstein, Immanuel. "America and the World: The Twin Towers as Metaphor / Immanuel Wallerstein." Understanding September 11.(2002), .